Improvement in wood-turning machines



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Wood-Turning Machine. 7 No. 214,652. Patented April 22,1879.

FIG/1. Ema. W1 TNEISS'EZS'? INVENTO :LBETERS, PNOTOTUTHOGRAFHER,WASHINGTON D C shaped forms or disks.

result I use the following arrangement and UNITED.STATES PATENT OFFICE.

FREEMAN HANSON OF HOLLIS, MAINE.

IMPROVEMENT IN WOOD-TURNING MACHINES.

Specification forming part of Letters Patent No. 214,652, dated April2'2, 1879; application filed February 17, 1879.

To all whom it may concern r Be it known that l, FREEMAN HANSON, ofHollis, in the county of York and State of Maine, have invented certainnew and useful Improvements in Machines for Turning Wood into. DifferentForms; and I do hereby declare that the following is a full, clear, andexact description of the invention, which will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings,and to letters of reference markedthereon, which form a part of this specification.

Figure 1 shows a top plan. Fig. 2 is a side view. Fi 3 is an end view,showing geared wheels. Fig. 4 is an end .view, showing eccentric anduprights. Figs. 6 and 7 are de' tails of cutting device. Fig. 5 is adetail of a modification of my machine.

Like letters of reference have relation to same parts.

The nature of my invention is to produce a new and improved machine forturning or cutting wood into round, oval, or any irregular To accomplishthis organization of mechanism for operating upon a piece of wood.

In the drawings, (t represents the base or table-top, on which all thedifferent parts of the mechanism are placed. b shows the pulley overwhich the driving-belt passes. This pulley is secured to the shaft 0.The shaft is held in position by the standards or uprights d d. Thisshaft 0 is provided at one end with the crank 12. At the other end isfirmly attached the geared wheel f. h represents a bed or base piecepivoted at the ends i t. The bed or base piecc has rising from it at theends the uprights or standards jj. Z is a shaft having on one end thechuck l for holding the wood. On the other is the geared wheel m. Agroove or channel runs nearly the whole length of this shaft. The grooveor channel is to receive a key or projection in the hub of the gearedwheel m. The object of this is to permit the operator to accommodate theworking of the machine to pieces of wood of various lengths by drawingthe shaft longitudinally either way through the geared wheel m. a showsan upright which slides 011 the bed or base piece 71, and holds the endof the shaft l nearest the chuck in position. These several partsthe bedor base piece h, standards j j, shaft 1, geared wheel m, and uprightntaken together, constitute what I call a rocking device. '0 0 are twoleverarms passing from the shafts c and l, and being joined at p by ashort shaft. Upon this shaft is the geared wheel q,'which meshes intothe geared wheels f and m, and when the machine is in operation hasaperpendicular motion between them, in order to give the propervibratory backward and forward motion to the rocking device. Attached tothe upright j ofv the rocking device, and passing from the same to thecrank e, is the rod 20. r is an upright so pivoted to the base a as tobe moved backward or forward by the hand at the convenience of theoperator. At the top end of this upright is attached a short shaft, 8,one end having the knife or cutting device a, the other the small pulleyt. 2 represents a handle to be used in controlling the upright.

The method of operation is as follows: A piece of wood of any convenientlength is fastened into the chuck l, the other end is passed through theopening in the upright j, then the shaft Z is moved longitudinally, sothat the wood will be in position to be acted upon by the cutting devicea, The belt is then set in motion. As the shaft 0 revolves the rod to,connecting the crank e and the upright j of the rocking device, and thegeared wheels f, m, and g set the rocking device in motion, vibratingbackward and forward. The geared wheel at is made larger than the gearedwheel f. By this means the shaft cis caused to make more revolutionsthan the shaft Z. At the same time the upright r is placed in positionand power is applied tow the pulley t, which imparts revolution to theknife or cutting device. All these different motions cause the piece ofwood pressing against the knife or cutting device to be operated upon insuch a manner as to cut or shape the end into some form other thancircular. The knife or cutting device is shown in detail in Figs. 6 and7. It is so constructed that the saw-teeth (shown at 00) score or creasethe wood at the same time the knife-edge is shaping and cutting the endof the same.

As soon as a disk is properly shaped the op erator pushes the upright 1'into such position that the saw-teeth of the cutting device (shown at 3enter the crease made by the saw-teeth a: and cut ofi the disk.

During the operation of cutting on the disk the upright is graduallymoved back into its first position, so that while one disk is being cutoff by y another one is formed for a repetition of this operation.

If, as a matter of convenience, it should be deemed preferable, theeccentric 0 may be re moved and a form of any shape attached to theshaft 0 in its stead, with the rod 10 passing over it and held upon itby a spring, as shown in Fig. 5. Then my invention can be practiced withthe same results as in the form before described.

The great advantage claimed for my invention over all others resultschiefly from the employment of the new and novel arrangement of thegeared wheels, crank, and rocking bed, operating as above described,thus accomplishing by motion what has heretofore been performed bypatterns and guides.

If in use the geared wheel m'is made with twice as many teeth as thegeared wheel f, the shaft 0 will make two revolutions to one of theshaft 1, and the disk or form turned will be an oval.

But I donot mean to confine the operation of my invention to the turningof oval forms or disks.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination of the rocking device, the geared wheels f and m,being of difierent sizes, the geared wheel q, shaft 0, rod w, and crank0, all operating to produce motion, as and for the purposes herein setforth.

2. The pivoted upright r, shaft 8, pulley t, knife or cutting device 11,in combination with the rocking device, the geared wheels f and m,constructed as described, cared wheel q, shaft 1, workinglongitudinally, shaft 0, rod 10, and crank 6, operating substantially inthe manner and for the purposes set forth.

3. The combination of the shafts, pulley t, and cutting device a, withits two parts as and y provided with saw-teeth, substantially as hereindescribed.- r

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

FREEMAN HANSON.

Witnesses:

WILLIAM HENRY CLIFFORD, HERBERT G. BRIGGS.

